package com.wj.rpsm.user.utils;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;
import java.util.UUID;

/**
 * @author WeiJin
 * @version 1.0
 */
public class AliOSSUtil {

    private final String endpoint = "https://oss-cn-chengdu.aliyuncs.com";
    private final String accessKeyId = "LTAI5tKecua1aNm9ct9oQv5i";
    private final String accessKeySecret = "uvbcaDGv6oontUjEVuM1RcfPJ66tpg";
    private final String bucketName = "rpsm";

    /**
     * 实现上传图片到OSS
     */
    public String upload(MultipartFile file) throws IOException {
        // 获取上传的文件的输入流
        InputStream inputStream = file.getInputStream();

        // 避免文件覆盖
        String originalFilename = file.getOriginalFilename();
        assert originalFilename != null : "上传文件时获取文件名失败，为null";
        String fileName = UUID.randomUUID() + originalFilename.substring(originalFilename.lastIndexOf("."));

        //上传文件到 OSS
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
        ossClient.putObject(bucketName, fileName, inputStream);

        //文件访问路径
        String url = endpoint.split("//")[0] + "//" + bucketName + "." + endpoint.split("//")[1] + "/" + fileName;
        // 关闭ossClient
        ossClient.shutdown();
        // 把上传到oss的路径返回
        return url;
    }
}
